MERRIMACK PHARMACEUTICALS IN's ticker is MACK and the CUSIP is 590328209. A total of 52 filers reported holding MERRIMACK PHARMACEUTICALS IN in Q1 2023. The put-call ratio across all filers is 0.61 and the average weighting 0.5%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2022 | $11,632,450 | +152.0% | 1,015,048 | -17.5% | 6.28% | +140.6% |
| Q3 2022 | $4,616,000 | -37.5% | 1,231,014 | -0.9% | 2.61% | -33.4% |
| Q2 2022 | $7,389,000 | -5.9% | 1,241,896 | 0.0% | 3.92% | +37.5% |
| Q1 2022 | $7,855,000 | +61.8% | 1,241,896 | 0.0% | 2.85% | +89.9% |
| Q4 2021 | $4,856,000 | -19.0% | 1,241,896 | 0.0% | 1.50% | -15.9% |
| Q3 2021 | $5,998,000 | -24.4% | 1,241,896 | 0.0% | 1.79% | -16.2% |
| Q2 2021 | $7,936,000 | +1.8% | 1,241,896 | 0.0% | 2.13% | -11.2% |
| Q1 2021 | $7,799,000 | -8.9% | 1,241,896 | 0.0% | 2.40% | -21.6% |
| Q4 2020 | $8,557,000 | +72.2% | 1,241,896 | 0.0% | 3.06% | +21.6% |
| Q3 2020 | $4,968,000 | +20.1% | 1,241,896 | 0.0% | 2.52% | +12.3% |
| Q2 2020 | $4,136,000 | +54.9% | 1,241,896 | 0.0% | 2.24% | +8.0% |
| Q1 2020 | $2,670,000 | -31.7% | 1,241,896 | 0.0% | 2.08% | -53.3% |
| Q4 2019 | $3,912,000 | -30.0% | 1,241,896 | 0.0% | 4.44% | -39.8% |
| Q3 2019 | $5,589,000 | -25.6% | 1,241,896 | 0.0% | 7.37% | -9.4% |
| Q2 2019 | $7,513,000 | -1.0% | 1,241,896 | +13.7% | 8.14% | +54.0% |
| Q1 2019 | $7,591,000 | +162.5% | 1,092,263 | +45.8% | 5.28% | +193.1% |
| Q4 2018 | $2,892,000 | – | 749,302 | – | 1.80% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Western Standard LLC | 1,894,013 | $23,353,180 | 21.09% |
| Newtyn Management, LLC | 1,873,694 | $23,102,647 | 5.70% |
| Sio Capital Management, LLC | 288,466 | $3,556,786 | 1.10% |
| Madison Avenue Partners, LP | 553,085 | $6,819,538 | 0.97% |
| WITTENBERG INVESTMENT MANAGEMENT, INC. | 209,739 | $2,586 | 0.95% |
| Indaba Capital Management, L.P. | 136,802 | $1,686,769 | 0.50% |
| Sepio Capital, LP | 306,680 | $3,781,364 | 0.33% |
| Yakira Capital Management, Inc. | 54,118 | $667,275 | 0.18% |
| Centiva Capital, LP | 187,803 | $2,315,611 | 0.05% |
| FIFTH LANE CAPITAL, LP | 10,929 | $134,427 | 0.05% |